Which enzyme makes the second messenger cAMP from ATP?
A) adenylyl cyclase
B) guanylyl cyclase
C) phosphodiesterase
D) cAMP-dependent protein kinase

Question

Quizplus · Accepted Answer

Adenylyl cyclase is the enzyme that converts ATP to the second messenger cAMP by catalyzing the formation of a cyclic phosphate bond. Guanylyl cyclase is involved in producing the second messenger cGMP, and phosphodiesterase breaks down cAMP. cAMP-dependent protein kinase is a downstream target of cAMP and is not involved in its synthesis.

Which Enzyme Makes the Second Messenger CAMP from ATP